Q. Equivalent weight of $K_{2} C r_{2} O_{7}$ , in the following reaction is
$C r_{2} O_{7}^{2 -} F e^{2 +} \to F e^{3 +} C r^{3 +}$
( $M =$ molar mass of $K_{2} C r_{2} O_{7}$ )

2031 181 Redox Reactions Report Error

A

$\frac{M}{3}$

B

$\frac{M}{6}$

C

$\frac{M}{5}$

D

$\frac{M}{4}$

Solution:

Correct answer is (b) $\frac{M}{6}$

Solution Image